Fuel Line Inspection

Flammable - Keep Fire Away

NOTE:
How to read the torque specifications.
Refer to the Fuel and Emissions Systems Service Precautions before disconnecting the fuel line.
Fuel may cause flammable gas leaks and may result in fire. Keep sparks, flame and, cigarettes away.

1. Fuel Line - Inspect

NOTE:
Check the fuel system lines and hoses for damage, leaks, and deterioration. Replace any damaged parts.
Check all clamps, and make sure they are properly positioned and tightened.
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Make sure the clamps are in the position of the ranges shown.
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Align the marks on the hoses and the pipes.
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There should be no clearance between the hoses and the pipes.
L15B7/L15BA/L15BY

L15B7/L15BA

L15BY

K20C2


'16 KA/KC


KX


Fuel Leak Check (L15B7/L15BA/L15BY)


NOTE:
Do not disconnect the water bypass hoses.
Do not bend the water bypass hoses excessively.

2. Intake Manifold Bracket - Remove
1.
Remove the intake manifold bracket (A).
2.
Move the high pressure fuel pump cover (B).
NOTE: Do not disconnect the quick-connect fitting.

4. Fuel Leak - Check
1.
Apply commercially available Met-L-Check D-70 Developer to the joint of the injectors (A), the fuel rail (B), and the high pressure fuel pump (C). Set the probe of the leak detector (Snap-on Combustible Gas Leak Detector) on the joint.
2.
Install the intake manifold and the throttle body with the gaskets that had used on them.
3.
Turn the vehicle to the ON mode, but do not operate the starter. After the fuel pump runs for about 2 seconds, the low pressure fuel line will be pressurized. Repeat this two or three times, then check for fuel leakage.
4.
Start the engine. Hold the engine speed at 4,000 rpm for 1 minute, and stop the engine.
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If the fuel line is leaking, stop the engine immediately, and turn the vehicle to the OFF (LOCK) mode.
5.
NOTE:
Do not disconnect the water bypass hoses.
Do not bend the water bypass hoses excessively.
6.
Check for fuel leakage to joint of the injectors, the fuel rail, and the high pressure fuel pump.

6. Intake Manifold Bracket - Install
1.
Set the high pressure fuel pump cover (A).
2.
Install the intake manifold bracket (B).